*** Terminating app due to uncaught exception 'CALayerInvalidGeometry', reason: 'CALayer position contains NaN: [nan 32]'
*** First throw call stack:
(
0 CoreFoundation 0x0259ea14 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x0205fe02 objc_exception_throw + 50
2 CoreFoundation